Oil-burner



(No Model.) .2 sheets-sheet 1.

P. L. BEAR.

- OIL BURNER.

No.. 405,391. Patented'June 178; 1889.

Witnesses: Inventor Wem l. buw'ww Attorney (No Modell) 2 sheets-sheer. 2. P L. BEAR.

OIL BURNER.

No. 405,391'. Patented Ju11e`18, 1889.

my Inventor TY. geg CLC' O'WU' H w Attorney UNITED STATES;

PATENT OEEICE.

VPHILIP L. BEAR, OF HAMILTON ,OHIO

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 405,391, dated June 18, 1889.

Application filed January 21, 1889. Serial No. 297,002. (No model.)

To aZZ whom it may concern:

Be it known that I, PHILIP L. BEAR, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Oil- Burners, of which the following' is a specification.

This invention pertains to that class of devices employed in injecting a spray of iniiammable oil into a boiler-furnace or other combustion-chamber by the action of a steamjet.

The improvements will be readily understood from `the following description, taken in connection with the accompanying drawings, in which- Figure l is a side elevation of an oil-burner illustrating' my improvements; Fig.2, a vertical longitudinal section of the same; Fig. 3, a horizontal longitudinal section of the discharge end of the same; Fig. 4, an elevation, upon an enlarged scale, of the discharge end of the burner; and Fig. 5, a vertical longitudinal section of a steam-boiler furnace provided with my improved oil-burner.

In the drawings, A indicates a metallic oilchamber; B, a pipe leading thereto and adapted to be connected with a source of oilsupply under sufficient pressure to cause the oil to flow to and `lill the chamber; C, a steamchamber projecting axially from one end of the oil-chamber; D, a pipe connected with this steam-chamber and adapted to be connected with a source of supply of steam under pressure; E, the discharge or nozzle of the steam-chamber, located at that end of the steam-chamber farthest from the oil-chamber, this nozzle being preferably rectangular and having an outward flare; F, a removable cap serving to close the outer end of the oil-chamber; G, a stufng-box in the wall separating the oil-chamber from the steam-chamber; H, an oil-tube axially disposed in the two chambers and extending from the nozzle of the steamchamber back through the stuffing-box and into the oil-chamber; J, perforations in that portion of the oil-tube extending into the oil-chamber and serving to permit the oil to pass from the oil-chamber into the oil-tube; K, a regulating-screw journaled in the cap of the oil-chamber and screwing into the end of the oil-tube and serving as a means by which the oil-tube may be adjusted endwise; L, a

hand-wheel on this regulating-screw to serve in manipulating the screw; M, a stuiing-box on thecap of the oil-chamber where the regulating-screw passes through the cap;I N, the nozzle end of the oil-pipe, the same consisting of an externally-flared portion rectangular in cross-section to fit the rectangular nozzle E of the steam-chamber, this end of the oilpipebeing, in a general sense, closed; O, the steam-ajutage formed by such opening as may be left between the innerwalls of the steamnozzle E and the outer surface of the nozzle end of the oil-pipe; P, the upper portion of the oilajutage, the same consisting of a horizontal mortise extending from the face of the nozzle end of the oil-pipe backwardly into communication with the oil-tube, this mortise being disposed parallel to and near to the upper horizontal portion of the steam-aj utage O; Q, vertical portions of the oil-aj utage formed by vertical downward prolongations of the mortise P, the mortises Q, in common with the mortise P, leading backwardly into communication with the' oil-tube, these mortises Q lying parallel with and close to the vertical portions of the y steam-ajutage O; R, a circumferential series of screws screwed radially through the wall of the steam-chamber and engaging with their points shallow longitudinal grooves in the oiltube H; S, the grooves just referred to, and T a circumferential series of pegs projecting inwardly from the wall of the steam-chamber into contiguity with the oil-tube.

Oil through pipe B ills oil-chamber A and inds its way through the perforations J to the oil-tube, and seeks to flow out of the oilajutage P Q. Steam through pipe D finds its way to the steam-chamber and seeks to jet `out at the steam-ajutage O around the nozzle end of the oil-tube. By means of the regulating-screw the oil-tube can be drawn backwardly until this nozzle end practically closes serve to support the oil-tube and maintain it in proper general concentricity in the steam- IOO chamber. The screws R serve in adjusting the nozzle end of the oil-tube into accurate transverse relationship to the nozzle end of the steam-chamber, whereby the width of the steam-ajutage O may be made uniform entirely around the nozzle end of the oil-tube, or adjusted out of uniformity in case it is l desired that the lower port-ion or the upper portion or either'side portion of the steamaj utage shall be individually excessive, it being understood that this delicate adjustment by meansof the screws R is within the range of movement on the partof the oil-tube permitted by the pegs T, which pegs, if present, engage the oil-tube loosely. The screws R, or any one of them, engaging the grooves S, serve also in limiting the outward endwise movement of the oil-tube in the steam-chamber, thus preventing'the steam from blowing the oil-tube entirely out o`f the burner in case the regulating-screw K should be improperly manipulated. The steamissuing from steamaj utage O jets outwardly with a force dependent upon the pressure of the steam and the width to which the steam-ajutage has been adjusted. The steam-jettakes a hollow rectangular flaring form, with sensibly-defined and limited top and bottom and side elements. Oil issuing from the oil-ajutages P Q becomes vaporized by the steam, as usual, and jets forward with it, thus forming a combustible jet of steam and oil vapor, which is to be ignited and burned in the usual manner. The burner is to be-set with its axis horizontal. The upper horizontalportion and the vertical portions or the greater lengths of the vertical portions of the steam-j et as it leaves the burner find themselves parallel with the oil flowing from the oil-aj utage, and at once enter upon their duty of vaporization. The lower horizontal portion of the steam-jet is not parallel to the oil-ajutage, and therefore is not at once called upon for the performance of a vaporizing duty. This lowerportion of the steam-jet therefore retains a superior jetting-power, and serves in a superior manner in maintaining the outward prolongation of the entire jet, and at the same time in disposing below the body of combustible vapor a stratum of non-combustible steam. The heating features of the jet are therefore mainly upward and sidewise, and in case the device is used under a boiler a flame of superior prolongation and of superior upward heating effect can be produced. The nozzle end of the oil-tube may, by means of the screws R, be transversely adjusted, so as to increase the relative eectiveness of any particular individual portion of the steam-jet, whereby the heat of the flame may be caused to become more effective in any desired transverse direction.

. I claim as my inventio'n- 1. In an oil-burner, the combination, substantially as set forth, of a steam-tube having a discharge end ornozzle and an oil-tube within the same and having a nozzle end, entirely around which a steam-ajutage is formed between the exterior of the nozzle of the oiltube and the interior of the nozzle of the steam-tube, the nozzle end of the oiltube be.

ing provided with an oil-ajutage extending around within and close to said steam-ajutage, except at the lower portion, at which portion of the steam-ajutage the oil-ajutage is blank.

2. In an oil-burner, the combination, substantially as set forth, of a steam-chamber having a nozzle, an oil-tube disposed therein and having a general closure at its end at said steam-nozzle, and having two verticallydisposed oil-ajutages joined at their tops by a horizontal oil-aj utage.

PHILIP L. BEAR.

Vitn esses: i

J AMES W. SEE, W. A. SEwARD. 

